A SPECTROGRAPH PLATE SHIELD
作者:
J. Tracy Lay,
I. Clyde Cornog,
期刊:
Review of Scientific Instruments
(AIP Available online 1931)
卷期:
Volume 2,
issue 5
页码: 293-296
ISSN:0034-6748
年代: 1931
DOI:10.1063/1.1748791
出版商: AIP
数据来源: AIP
摘要:
A shield designed for use in a spectrograph to prevent pre‐exposure and subsequent exposure of the photographic plate due to scattered light when a number of spectra are photographed on the same plate or film. The use of such a shield eliminates consequent errors in the densities of spectral lines as determined by a densitometer.
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